The Visual 6502

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Summary

The Visual 6502 is a JavaScript-based simulator that provides a visual, transistor-level simulation of the 6502 microprocessor, designed for educational and reverse-engineering purposes.

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Cached at: 07/24/26, 05:01 AM

# Visual 6502 in JavaScript Source: [http://visual6502.org/JSSim/index.html](http://visual6502.org/JSSim/index.html) [The Visual 6502](http://visual6502.org/) [FAQ](http://www.visual6502.org/faq.html)[Blog](http://blog.visual6502.org/)[Links](http://www.visual6502.org/links.html)This simulator uses HTML5 features only found on the latest versions of browsers and needs lots of RAM\. If you have trouble, please[check compatibility\.](http://visual6502.org/JSSim/browsertrouble.html) Keyboard controls: 'z' to zoom in, 'x' to zoom out, 'n' to step the simulation\. Mouse controls: Left\-click and drag to scroll around \(when you're zoomed in\.\) More information in the[User Guide](http://visual6502.org/wiki/index.php?title=JssimUserHelp)\. Source code is available on[github visual6502](http://github.com/trebonian/visual6502)\. Use the online[emulator and assembler](http://skilldrick.github.com/easy6502/#first-program)from the easy6502 tutorial and[disassembler](http://www.masswerk.at/6502/disassembler.html)from mass:werk For in\-depth 6502 investigation and some more advanced features, try our[Advanced](http://visual6502.org/JSSim/expert.html)page\.

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